We like to ooo and ahh over gadget-y cars like the Honda Civic Hybrid and Toyota Prius, especially when rumors swirl about turbocharged engines getting 100 miles per gallon. But then we saw this winner of the SAE Super Mileage Competition, a car which racked up a jaw-dropping 3145 miles per gallon. This is a particularly amazing feat, because it's nearly twice as efficient as its predecessor: the same Canadian team won the competition last year with a 1600mpg car.